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require 'erb'
require_relative '../../spec_helper'
describe "ERB#result" do
it "return the result of compiled ruby code" do
input = <<'END'
<ul>
<% for item in list %>
<li><%= item %>
<% end %>
</ul>
END
expected = <<'END'
<ul>
<li>AAA
<li>BBB
<li>CCC
</ul>
END
erb = ERB.new(input)
list = %w[AAA BBB CCC]
actual = erb.result(binding)
actual.should == expected
end
it "share local variables" do
input = "<% var = 456 %>"
expected = 456
var = 123
ERB.new(input).result(binding)
var.should == expected
end
it "is not able to h() or u() unless including ERB::Util" do
input = "<%=h '<>' %>"
-> {
ERB.new(input).result()
}.should raise_error(NameError)
end
it "is able to h() or u() if ERB::Util is included" do
myerb1 = Class.new do
include ERB::Util
def main
input = "<%=h '<>' %>"
return ERB.new(input).result(binding)
end
end
expected = '<>'
actual = myerb1.new.main()
actual.should == expected
end
it "use TOPLEVEL_BINDING if binding is not passed" do
myerb2 = Class.new do
include ERB::Util
def main1
#input = "<%= binding.to_s %>"
input = "<%= _xxx_var_ %>"
return ERB.new(input).result()
end
def main2
input = "<%=h '<>' %>"
return ERB.new(input).result()
end
end
eval '_xxx_var_ = 123', TOPLEVEL_BINDING
expected = '123'
myerb2.new.main1().should == expected
-> {
myerb2.new.main2()
}.should raise_error(NameError)
end
end
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